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Showing result 1 - 5 of 80 essays matching the above criteria.

  1. 1. Detection and Analysis of Anomalies in Tactical Sensor Systems through Structured Hypothesis Testing

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Fredrik Ohlson; [2023]
    Keywords : Tactical sensor systems; Sensor fusion; Model based diagnostics; Hypothesis testing; Taktiska sensor system; Sensor fusion; Modellbaserad diagnostisering; Hypotesprövning;

    Abstract : The project explores the domain of tactical sensor systems, focusing on SAAB Gripen’s sensor technologies such as radar, RWR (Radar Warning Receiver), and IRST (InfraRed Search and Track). The study employs structured hypothesis testing and model based diagnostics to examine the effectiveness of identifying and isolating deviations within these systems. READ MORE

  3. 2. Solutions for presence detection in an intercom door station

    University essay from Lunds universitet/Industriell elektroteknik och automation

    Author : Anton Bengtsson; Måns Andreasson; [2023]
    Keywords : presence detection; sensor technology; PIR; ultrasonic; radar; intercom; Technology and Engineering;

    Abstract : In this work, different solutions for human presence detection in a door intercom device are examined. The study was conducted at a company in Lund, Sweden. READ MORE

  4. 3. Monitoring of Partial Discharges on Cable Terminations : An experimental approach to evaluate non-conventional online PD measurement techniques

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Tony Sibo; [2023]
    Keywords : Monitoring; Partial discharges; Medium-voltage cable terminations; Sensor performance; Reliability evaluation; Infrared camera IR-camera ; Ultrasonic emission sensor AE-sensor ; Temperature and relative humidity sensor TRH-sensor ; High frequency current transformer HFCT ; Transient earth voltage antenna TEV-antenna ; Conventional VS non-conventional PD measurement techniques; Övervakning; Partiella urladdningar; Mellanspänningskabelslut; Evaluering av sensorprestanda; Utvärdering av systemets tillförlitlighet; Infraröd kamera; Ultraljudssensor; Temperatur- och relativ fuktighetssensor; Högfrekvent strömtransformator; Transient jordspänningsantenn; Konventionella vs icke-konventionella mättekniker;

    Abstract : The transmission of electric power over long distances has historically posed challenges. However, the advent of high-voltage engineering has not only addressed distance barriers and power losses in electricity transmission and distribution, but it has also significantly improved the efficiency and transmission capacity of power grids. READ MORE

  5. 4. Introducing disturbances to a chopped PIR sensor when investigating the performance in an office environment

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Maria Sandahl; Joel Fröberg; [2023]
    Keywords : ;

    Abstract : This master's thesis, conducted in collaboration with Knowit Connectivity, aims to develop a booking device for meeting rooms. The focus of the project is to identify and mitigate disturbances in the C-PIR sensor introduced by Haili Liu et al. READ MORE

  6. 5. Optical properties of water absorbing textiles for camouflage

    University essay from Linköpings universitet/Institutionen för fysik, kemi och biologi

    Author : Eveline Örtenberg; [2023]
    Keywords : Camouflage; SWIR; Water; Nanocellulose; CNF; Textiles;

    Abstract : Background matching, a form of camouflage, involves species developing patterns and coloration that closely resemble their environment. Humans have utilized camouflage and background matching, particularly in military applications, to reduce detectable characteristics, known as signatures. READ MORE